日: 2026年7月17日

How to Process Floating Fish Feed: A Step-by-Step Guide

Floating fish feed offers significant advantages over sinking feed: less waste, higher feed intake, improved feed efficiency, and better observation of fish feeding behavior. The key to producing floating pellets lies in extrusion technology, which subjects feed mixtures to high heat and steam pressure. When the material exits the die, trapped steam expands rapidly, creating a low-density, buoyant pellet. Here is a practical guide to the floating feed production process. 1. Raw Material Preparation and Grinding Start with high-quality ingredients. Common components include fish meal, soybean meal, maize, rice bran, and oil cakes. The formulation must provide adequate starch (at least 20% is recommended for floatation), protein, and fat for […]

Ten Practical Tips for Fish Feed Processing

Producing high-quality fish feed requires careful attention to processing techniques. From raw material preparation to final pellet stability, each step influences feed digestibility, water stability, and fish growth performance. Here are ten essential tips for effective fish feed processing. 1. Inspect and Clean Raw Materials Thoroughly Before processing begins, all incoming ingredients must undergo quality inspection. Check for visible mold, off-odors, or signs of contamination. Feed toxins—whether from chemical residues, mold, or naturally occurring anti-nutritional factors—can directly harm fish and pose food safety risks to consumers. Remove foreign materials: pass ingredients through screens to remove non-metallic debris, and use magnets to eliminate metal contaminants. This protects both feed quality and […]

The Applications of Twin-Screw Extruders: A Comprehensive Overview

Twin-screw extruders (TSEs) have emerged as one of the most versatile and indispensable pieces of processing equipment across a wide spectrum of industries. Their ability to continuously mix, compound, and transform materials with precision and efficiency makes them a cornerstone technology in modern manufacturing . Unlike their single-screw counterparts, which are primarily suited for conveying and melting, twin-screw extruders are engineered for complex mixing, reactive processing, and handling demanding formulations . This article explores the diverse applications of twin-screw extruders across key sectors, highlighting their transformative impact. Core Principles and Configurations Before delving into applications, it is essential to understand the fundamental design of a TSE. At its core, the […]